Catalog-sync lock banner no longer stays dismissed permanently

The catalog-sync lock notice on a selling plan's product selection card no longer persists in your browser indefinitely after you dismiss it.

When a selling plan applies a catalog change across all products or a large product set, the product selection card locks temporarily while Subi processes the update. A banner explains the lock and offers a dismiss button.

The dismiss state was stored without an expiry. If you clicked away from the banner once while the sync was running, the notice would never reappear. When you returned to the plan after the sync completed, the product selection card remained greyed out and unclickable with no explanation, even though the lock had been lifted.

Dismissals now expire after a short interval, matched to the expected duration of a catalog sync. Once the sync finishes, the product selection card is editable again and the lock banner stays gone.